A group of humans is called a tribe when it's a small group of humans such as when a few families or people live and work in a single unit.
A few hundred or more people in a group of humans is called a community and more than that the group of humans would be called a town then a city of people.
A group of humans can be called several things depending on the context eg; family, community, band, Town, city, nation, earthlings.
We often use collective nouns to refer to groups of people.
Examples: team, gang, squad, army, jury, clergy, cult, crew.
There are all sorts of words for groups of humans: nation, corporation, family, club, mob, gang, etc etc.
If you are asking about the English term for the group of humans then it is tribe.
Either for small and large group of people word tribe is used.